Insulator.



W. H. NICHOLS.

lNSULATOR.

APPLICATION FILED IUNE I5. 1912.

Patented June 22, 191 5.

WITNESSES: @fiu INVENTOR aIMw-m w B Y zfmwg A TT Y WILLIAM; H. NICHOLS, OF BENNIHGTON, VERMONT.

' IIBU'LATOB.

fluctuation of Letters Intent.

Patented June 22, 1915.

applicati n $104 une 15, 1918. Ser al No- 7083845 To all whom it may concern 7 Be it known that I, Wrmaur H. lfl'ro'uors, a citizen of the Unit d States, resid ng at Bennington, in the county of Bennlngton and State'of Vermont, have invented cer tain new and useful Improvements in I nsulators, of which the following is a specification.

M invention relates to insulators for holding electrical conductors to ceilings, walls and other supports.

United States Patent No. 697,001 was is: sued to me- April 8, 1902, for insulators My present-invention is intended as-an improvement upon the insulator shown and described in said patent.

My present insulator is also of the class known as interchangeable and reversible knobs.

The ,object of m present invention is to construct an interchangeable and reversible insulator for supporting several wire conductors in which at the same time wires ma cros each other at an angle. I accompli this object by means of an insulator made as shown in the accompanying drawings, in which Figure 1 is a erspective view of one member of my insul ator. Fig. 2 is a side elevation of the same. Fig. 3 1s a vertical section. Fig. 4 is a plan view of either the top or bottom of the insulator when the two members are united. Fig. 5 is a plan view of the face of one member of the insulator which is in tended to unite with the face of the other member.

Similar letters refer to similar parts throughout the several views.

My insulator is composed of two members, each of which is an exact duplicate of the other. They are thus interchangeable and reversible. Each member of the insulator has a head portion A and a base portion B. The face surfaceof the head portion A occupies one-half the vertical plane section of the insulator and the face surface of the base portion B is one-half of the vertical plane section of the insulator. So that the ace surface of the head portion A of one member will exactly fit upon the face surface of the base of the other member B. The insulator is held to the ceilin or wall by a nail or screw passing longitu inally through the center of the insulator.

g is the hole for the retaining screw or na D is the casin surrounding the hole C.

E 18 a pe en' 'cular shoulder connecting the face sur aceof the base B to the face surface of the head portion A. The casing D extends exactly one-half the distance of the shoulder E. The remaining distance being vacant so that when the two members are laced together the casing D in each mem r will t upon the casing D of the other member and the casing D in each member will fill the vacant space of the shoulder 'E of the other member, thus constituting an interlocking device locking the two members together.

Upon the face surface of the base B and also upon the face surface of the head portion A are grooves of suitable construction to retain the electrical conducting wires. These grooves are arranged to cross each other, one groove of each set of grooves is deeper than the groove crossing it upon the same surface. Thus providing space for two wires crossing each other at an angle within the insulator and held apart from each other.

As thus constructed the insulator requires but one mold for both members of the insulator and in use it is not necessary that they be selected in pairs. Aworkman may take either member at random and use'it either at the top or bottom of the insulator.

Also the insulator may be used where wires are intended to cross each other and will hold them secure and at an angle to each other and separated from each other. Thus being economical in construction and also in the use and providing an insulator capable of use for wires crossing each other.

What I claim as my invention and desire to secure by Letters Patent is,

An insulator, of the class described, consisting of two members, duplicates of each other, each member havin a head portion and a base portion at di erent elevations; the face surface of the head portion occupying one-half of the horizontal plane section of the insulator and the face surface of the base portion occupying one-half of the opposite horizontal plane section of the insulator; grooves in the face surfaces of both the head portion and the base portion extending across the entire distance of each of the face surfaces; said grooves crossing each other at angles less than right angles; said grooves being of different epths and each adapted to contain an electrical conducting dwmmsam new a wire; the face surface of the head portion of one member of the insulator adapted to coinride with and fit upon the face surface of the base portion of the other member of said insulator, and said grooves to correspond with each other; a perpendicular shoulder extending through the vertical central plane of each member from the face surface of the base portion to the face surface of the head portion of each member; a hole adapted to contain a screw or nail passing vertically through the center of each member; a casing surrounding said hole in each member extending one-half the perpendicular distance from the face surface of the base portion to the face surface of the head portion, a recess in said perpendicular shoulder extending from the top surface of the casing to the terminus of said perpendicular shoulder; the upper face surface of said casing being parallel to the face surface of said base, and said face surfaces of the different members of said insulator adapted to fit upon each other and the front portions of said casing adapted to occupy the corresponding recesses in the shoulder of each member whereby the vertical holes through the members will coincide with each other, forming a vertical hole throu h the center of said insulator adapted to he (1 the members of each insulator together and against the surface being wired.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM H. NICHOLS. Witnesses:

JANE H. BURGESS, E. H. HOLDEN. 

